From information given by Mr Austin Pengillyto Robert Richards of Chenale, Rosenithon, July
1971,
and farm title deeds.

The Manor of Rosenython belonged about 1308 A.D. to the
family of Seneschall who settled there and are
mentioned in the Doomsday Book. They were still there
in the reign of Edward V1, 1549. The name of the
present Holding known as Chenale is derived from
"Seneschall", and at that time their lands
included most of the surrounding farms, Rosenython,
Trythance, Trevean Tregellast. The Seneschalls were
installed in order to administer the estates of Robert
of Mortain, brother of William the Conqueror, which he
had confiscated from Queen Charlotte.

About 1590 the manor passed to Berjeaux from whom it
passed by female heirs to the Veres, Earls of Oxford
and then to Walter Raleigh Gilbert ( Rev C.of E.) of
the priory of Bodmin, through his wife, sister and
heiress of Rev John Hoskin of Tregowris. The Barton of
Tregowris and Trembraze were the seat of the Hoskins.
Trembraze is also in the Doomsday Book.

The "Seneschalls" coat of arms are on the
right hand side of the Tower door of St Keverne Church.
Those on the left belong to Trebarvah which belonged
temporarily to Richard II and Edward IV and to the
family of the Arch Deacon, latterly to Antony Williams,
vicar,who lived at Tremenhere House, Penzance. He sold
it to the Lory Family about 1700.

The different spellings of "Rosenython" and
"Rosenithon" are because the farm name comes
from old Cornish meaning "Nest in the Moors".
That is the name of the farm. When this was explained
to the ordnance survey map-makers, the reply was that
the village (hamlet, settlement,) has been spelled with
an "I" for so long that it must remain so.

When the Rogers family first came to Rosenython in
1752, they came as tenants from Rosemorder by way of
Roscorwell, just about two miles altogether. They
remained as tenants of the Vivian family of Trelowarren
until 1923 when the Trelowarren estate was raising
money to pay off the Bishop of Zululand who was a
family member. Rosenython was one of the farms sold to
raise the money.

My grand father, William, bought it for £3,900.
The original farm was only of 32acres, but my
grandfather also bought the Godrevy,and Treginges
tenements, making it up to around 70 acres. The holding
around Rosenithon village is still bounded by the
granite Trelowarren boundary stones.